Biology, asked by adarsh425488, 11 months ago

how blood groups work

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Answered by Anonymous

1

There are four main blood groups defined by the ABO system: blood group A – has A antigens on the red blood cells with anti-B antibodies in the plasma. ... blood group O – has no antigens, but both anti-A and anti-B antibodies in the plasma. blood group AB – has both A and B antigens, but no antibodies.

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